Finding the Fourth Proportional to 170,129.70, 255,194.55 and 130,763.70
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Solution
The fourth proportional to 170,129.70, 255,194.55 and 130,763.70 is: 196,145.55
Step by Step Solution
- Step 1: Write the proportion equation
170,129.70 : 255,194.55 = 130,763.70 : x - Step 2: Convert to fraction form
170,129.70/255,194.55 = 130,763.70/x - Step 3: Cross multiply
170,129.70x = 255,194.55 × 130,763.70 - Step 4: Simplify right side
170,129.70x = 33,370,183,577.84 - Step 5: Solve for x
x = 33,370,183,577.84/170,129.70 - Step 6: Final answer
x = 196,145.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.